* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f5f5f5;
}

header.page-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 3rem 1rem;
  text-align: center;
}

header.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

header.page-header .subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
}

main.container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}

section {
  margin-bottom: 3rem;
}

section h2 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid #667eea;
}

.card-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.card a {
  display: block;
  padding: 1.5rem;
  text-decoration: none;
  colour: inherit;
}

.card-title {
  font-weight: 600;
  font-size: 1.2rem;
  colour: #667eea;
  display: block;
  margin-bottom: 0.5rem;
}

.card-meta {
  font-size: 0.9rem;
  colour: #666;
}

footer {
  background: white;
  border-top: 1px solid #ddd;
  text-align: center;
  padding: 1.5rem;
  colour: #666;
  margin-top: 2rem;
}